EP1387111B1 - Hydraulically damped elastic mount - Google Patents

Hydraulically damped elastic mount Download PDF

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Publication number
EP1387111B1
EP1387111B1 EP03291891A EP03291891A EP1387111B1 EP 1387111 B1 EP1387111 B1 EP 1387111B1 EP 03291891 A EP03291891 A EP 03291891A EP 03291891 A EP03291891 A EP 03291891A EP 1387111 B1 EP1387111 B1 EP 1387111B1
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EP
European Patent Office
Prior art keywords
chambers
parts
core
membrane
support
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Expired - Lifetime
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EP03291891A
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German (de)
French (fr)
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EP1387111A1 (en
Inventor
Jose Vicente Royo Lucia
Jose M. Higueras Sanz
Armin Vogt
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Adam Opel GmbH
Caucho Metal Productos SL
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Adam Opel GmbH
Caucho Metal Productos SL
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
    • F16F13/16—Units of the bushing type, i.e. loaded predominantly radially specially adapted for receiving axial loads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts

Definitions

  • the present invention refers to a hydraulic damping type support for the control arm of motor vehicles, with a capacity for axial and radial elastic behavior, the disposition of its components giving it the particularity of canceling damping. in the axial direction, from a determined radial deformation.
  • the elastic supports with hydraulic damping in the axial direction are already known, there are already embodiments with internal passage of a fluid between two chambers, as in patents US 4877262, US 5005810 and EP 0386735, and embodiments with passage of fluid by an external duct between the chambers of the damper as in patents US 4739979, EP 0754877, EP 0458088 and DE 4015523.
  • patent EP 0 754 877 describes a damper having the features of the preamble of claim 1.
  • the known solutions of such dampers however, have a complex realization and assembly, in addition they may be deficient in some aspects of damping.
  • the object of the present invention it is possible to obtain a very advantageous, by means of an elastic support of simple geometry, able to respond linearly to the stresses in a direction both radial and axial, being damped hydraulically in the axial direction and capable of canceling said hydraulic damping at from a determined deformation in the radial direction, all with a realization of very simple construction and easy to assemble.
  • Said support object of the invention is defined by claim 1, and comprises a molded elastic core of material elastomer, including two annular reinforcing inserts and a central cylindrical sleeve associated with said material, on said core are incorporated two semi-cylindrical pieces complementary, between these parts and the core are defined two annular chambers separated by a membrane of the core, while on the set of semi-cylindrical pieces is incorporated an outer cylindrical structure, between this structure and at least one of semi-cylindrical pieces is defined a labyrinthine conduit that communicates with the aforementioned annular chambers, the entire volume of annular chambers mentioned and the labyrinthine duct being filled with damping liquid.
  • the elastomeric component material of the core makes the assembly offer in addition to a radial elasticity, with the particularity that, given the layout of the mounting, from a determined deformation radially, the two chambers containing damping liquid remain directly in communication with each other, thanks to the separation of the membrane with respect to the semi-cylindrical pieces, by the part from which the radial force, canceling the axial damping caused by the forced liquid between the two chambers through the outer labyrinthine conduit.
  • the mounting of the component elements of the support takes place in a liquid damper, for example glycol, with which all the inner recesses of the mounted assembly are completely filled and thanks to the assembly with closing inwards ends external structure, the liquid remains confined inside the support, without escaping towards outside.
  • a liquid damper for example glycol
  • the assembled mount behaves like any other piece of rubber-metal, that is to say elastically in case of movement of the inner part by relative to the outer part, in radial, axial, conical, torsion or combination of the previous ones. Thanks to the existing elastomer, the central sleeve of the core and the annular reinforcements thereof remain firmly mounted relative to the outer structure.
  • the elastic properties of the assembly can be modified by changing the geometry or the characteristics of the elastomer used, or by modifying the layout and geometry component elements associated with the elastomer.
  • the media generates significant damping when moving in the axial direction of the inner part relative to the outer part occurs, so that said movement is transmitted through the membrane that separates the two chambers containing the damping liquid, modifying the volume of said chambers, with a pumping of damping liquid from one chamber to another through the outer labyrinthine duct, which generates depreciation.
  • the core membrane remains supported against the inner part of the semi-cylindrical pieces with a determined pressure; this makes it possible, on the one hand, to maintain two chambers isolated from each other without preventing the elastic deformation of the membrane and its sliding on the outside of the semicylindrical parts mentioned, and on the other hand, in the case of radial stress, the pressure of the support of the membrane on the semi-cylindrical parts increases on one side and decreases on the other, so that from a determined displacement in one direction, the membrane is no longer in contact with the semi-cylindrical parts, thus causing direct communication between the two chambers and canceling the axial damping effect of the passage of the liquid by the leads labyrinthine exterior.
  • the radial force to cancel the damping axial can be more or less important.
  • Dynamic properties of the media can adjust by changing the design parts and components, since these dynamic properties depend on the elastic properties of the walls of the chambers containing the damping liquid, the efficiency pumping the membrane between the chambers, the pressure of said membrane against the interior of the semi-cylindrical pieces and the rheological properties of the damping liquid.
  • the elastic properties of the walls of the chambers adjust by changing their geometry, their material and their internal reinforcements.
  • the efficiency of pumping is modified by varying the diameter of the core membrane.
  • the effectiveness of depreciation can be modified in changing the section and the length of the labyrinthine conduit.
  • the pressure between the membrane and the semi-cylindrical pieces can be modified by varying the relative diameters between these elements. Moreover, thanks to the adjustment of the preceding parameters, it is possible, for a certain amplitude, to make that the depreciation is maximum at a determined frequency.
  • the support of the invention offers an almost linear elastic behavior in case of external stress in the radial direction since the core component elastomer elastic deformation which makes the relation between the displacement and the force exerted almost linear in the first few millimeters of deformation compared to other achievements of known medium in which said relationship ceases to be linear with a weak displacement.
  • the support is provided with a portion notched elastomeric material, adhering to some of the annular reinforcements of the core and disposed facing an outer element joined to the inner sleeve of the core, which allows to establish an elastic axial abutment in case of significant axial deformation, for example in case of brutal braking of the application vehicle, thus avoiding deteriorating the chambers containing the damping liquid.
  • the core is an axially symmetric part obtained by means of a simple process of molding the elastomer material on the reinforcement rings and the inner cylindrical sleeve, the socket cylindrical as the ring reinforcements being easy to obtain items, as well as that the outer structure of the support consists of a simple cylindrical tube of weak thickness, while the semi-cylindrical pieces arranged on the core have a simple geometry that can be obtained by molding in any plastic or similar material.
  • the mounting construction of the support is itself very simple, since the whole comprises only four pieces, namely the core, the two semi-cylindrical pieces and the external structure, which are incorporated in arrangement of arrangement in liquid damper that must fill the chambers and the labyrinthine duct of the bracket, so that by closing the ends of the structure on the extreme parts of the core, all the interior completely filled with liquid: the incorporation of the structure and the closure of ends can be done in one operation.
  • the practical fixing of the support on the place of application can be realized by means of of a single screw passed through the inner cylindrical sleeve of the core, while the outside the support also has a cylindrical shape which allows its easy assembly under pressure on any type of circular housing, without the need for screws or any other fastening element because of rather small dimensions allowing incorporate it into small spaces.
  • the support since the support has a symmetry axial, it can be mounted with an external fixation on any part of its length.
  • the object of the invention is an elastic support with hydraulic damping, which comprises, as shown in FIG. 1, a core (1), two semi-cylindrical pieces (2 and 3), and a cylindrical structure (4), inside which is mounted the core (1) on which are disposed the two semi-cylindrical parts.
  • the core (1) consists of an elastomeric material (5), which is molded on a inner cylindrical sleeve (6), also including two annular reinforcements (7 and 8) embedded in the own elastomeric material (5) in the areas at the ends.
  • This set of core (1) determines two annular slots (9 and 10), which are defined in the area between the positions of the two ring reinforcements (7 and 8) and being separated by an intermediate central membrane (11).
  • the semi-cylindrical pieces (2 and 3) are arranged forming a ring on the outside the core (1), between the annular reinforcements (7 and 8), so that they remain supported against the membrane (11), closing peripherally the slots (9 and 10), which thus form annular chambers isolated from each other by the membrane (11).
  • the assembly of the assembly is carried out in a damping liquid, so that the interior of the chambers (9 and 10) and the labyrinthine duct (12) is completely filled said liquid; the assembly ending with the closing of the ends of the structure (4) inwardly, so that said ends remain supported against the core (1), the structure (4) thus ensuring the packaging of the whole, while realizing the seal that prevents the enclosed liquid from escaping.
  • the assembled assembly is as shown in FIG. 2, that is to say that it comprises the core (1) inside, and between it and the outer structure (4) are included the pieces (2 and 3) determining the chambers (9 and 10) separated by the membrane (11) and communicating between them from the outside of the pieces (2 and 3) through the labyrinthine conduit (12), the interior chambers (9 and 10) and the conduit (12) being completely filled with liquid damper.
  • the elastomeric material (5) of the core allows deformation between the inner sleeve (6) and the annular reinforcements (7 and 8) on which the outer structure (4) is supported by means of a small layer of elastomeric material (5), so that the whole has an almost linear elastic behavior in case of solicitation radial, axial, conical, torsion, or the combination of the previous ones.
  • the membrane (11) remains in contact with the inner part of the parts (2 and 3) with a certain pressure, thus establishing a tight separation between the chambers (9 and 10), but with a freedom of elastic deformation and a sliding on said support.
  • the fixing of the support for its practical application is carried out through the socket (6) and the external structure (4), via the introduction of a fixing screw by the axial slot of the socket (6) and embedding the assembly inside a housing cylindrical in which the structure (4) remains adjusted under pressure.
  • the support is able to effectively dampen the component axial in case of movement or vibration of the inner sleeve (6) with respect to the structure outside (4), since the movement of the sleeve (6) is transmitted to the hinge (11), causing a change in the volume of the chambers (9 and 10) according to the force applied, increasing the volume of one of the rooms while decreasing the one of the other, like this is shown in Figure 3.
  • the decrease in the volume in the chamber (10) which is reduced causes a increasing the pressure in said chamber (10) while increasing the volume in the chamber (9) which expands causes a decrease of the pressure in the this chamber (9), the two effects being added to create a pumping action of the liquid contained in said chambers (9 and 10), from the chamber (10) to the chamber (9), through the outer duct (12), so that the reduced section and the labyrinthine geometry of said conduit (12) provide resistance to the passage of the liquid, which results in a damping of the axial force applied between the sleeve (6) and the structure (4).
  • the diaphragm (11) is designed to remain in the mounting arrangement, compressed at a certain pressure between the pieces (2 and 3), so that the chambers (9 and 10) remain isolated from each other, but without preventing the elastic deformation of the elastomeric coating of said membrane (11) and sliding on the inside of the parts (2 and 3).
  • the elastic support may be subjected to radial-type stresses, axial, conical or torsional to a certain degree without direct communication between the two chambers (9 and 10) do not occur, as long as in case of displacement of a socket interior (6) relative to the outer structure (4), radially, the adjustment between the membrane (11) and the pieces (2 and 3) increase on one side and decrease on the other, so that even though this adjustment on the contour is more important than the radial displacement of the socket (6), the diaphragm (11) can hold the two chambers (9 and 10) isolated. But when the bushing (6) reaches a certain radial displacement (15), as illustrated in FIG. 4, the contour of the membrane (11) loses in one zone the contact with the inside of the parts (2 and 3), producing a direct communication between the rooms (9 and 10), with the disappearance of the damping effect produced by the passage of the liquid through the conduit (12) under conditions normal.
  • the membrane (11) comes into contact with the interior of the parts (2 and 3) over the entire contour, interrupting the direct communication between the rooms (9 and 10) and leaving them new communicate only through the outer conduit (12), with which the effect damper is recovered.
  • the core (1) incorporates a notched portion (16) of material elastomer, which can be continuous on a circular contour with prominent parts separated by zones of lesser height, said notched portion (16) being disposed on an wing (17) of the corresponding directory reinforcement (7) of said end, while an element (18) disc-shaped, integral with the inner sleeve (6) is incorporated in said end, this element being at a distance from the notched portion (16).
  • the support behaves as described above, damping the force which gives rise to the deformation, but when the sleeve (6) arrives at a certain degree of axial displacement with respect to the structure (4), the element (18) buffers on the notched portion (16), which significantly increases the axial rigidity, opposing a much stronger resistance to further axial displacement of the sleeve (6), avoiding thereby deteriorating the elastomeric material (5) which configures the chambers (9 and 10).
  • the described functionality is achieved with a very simple realization support, including the assembly assembly comprises only the molded core (1), the two semi-cylindrical parts (2 and 3) and the outer structure (4), forming a reduced-size element, which is extremely advantageous for the practical installation of its application, and with which one obtains a static and dynamic behavior with characteristics such as those shown in Figures 5, 6, 7 and 8, which are not obtained in such proportions with the known elastic support embodiments of the same application.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Springs (AREA)
  • Support Of The Bearing (AREA)

Abstract

The support comprises an interior elastomer core (5) molded on an interior cylindrical socket (6) and on several annular reinforcements (7,8) and an exterior cylindrical structure (4) which can have a relative displacement to each other. There are chambers (9,10) filled with a liquid which can be forced between them through an exterior labyrinth channel (12) in order to dampen the relative axial movements between the interior core and the exterior structure.

Description

La présente invention se réfère à un support de type à amortissement hydraulique et destiné au bras de commande des véhicules automobiles, doté d'une capacité de comportement élastique axial et radial, la disposition de ses composants lui conférant la particularité d'annuler l'amortissement en direction axiale, à partir d'une déformation radiale déterminée.
Les supports élastiques à amortissement hydraulique en direction axiale sont déjà connus, il existe déjà des réalisations avec passage intérieur d'un fluide entre deux chambres, comme dans les brevets US 4877262, US 5005810 et EP 0386735, ainsi que des réalisations avec passage du fluide par un conduit extérieur entre les chambres de l'amortisseur tel que dans les brevets US 4739979, EP 0754877, EP 0458088 et DE 4015523. En particulier, le brevet EP 0 754 877 décrit un amortisseur présentant les caractéristiques du préambule de la revendication 1. Les solutions connues de tels amortisseurs présentent toutefois une réalisation et un montage complexes, en outre elles peuvent s'avérer déficientes dans certains aspects de l'amortissement.The present invention refers to a hydraulic damping type support for the control arm of motor vehicles, with a capacity for axial and radial elastic behavior, the disposition of its components giving it the particularity of canceling damping. in the axial direction, from a determined radial deformation.
The elastic supports with hydraulic damping in the axial direction are already known, there are already embodiments with internal passage of a fluid between two chambers, as in patents US 4877262, US 5005810 and EP 0386735, and embodiments with passage of fluid by an external duct between the chambers of the damper as in patents US 4739979, EP 0754877, EP 0458088 and DE 4015523. In particular, patent EP 0 754 877 describes a damper having the features of the preamble of claim 1. The known solutions of such dampers, however, have a complex realization and assembly, in addition they may be deficient in some aspects of damping.

Grâce à l'objet de la présente invention, il est possible d'obtenir une solution très avantageuse, au moyen d'un support élastique de géométrie simple, capable de répondre linéairement aux sollicitations dans une direction à la fois radiale et axiale, étant amorti hydrauliquement en direction axiale et capable d'annuler ledit amortissement hydraulique à partir d'une déformation déterminée en direction radiale, tout cela avec une réalisation de construction très simple et facile à monter.Thanks to the object of the present invention, it is possible to obtain a very advantageous, by means of an elastic support of simple geometry, able to respond linearly to the stresses in a direction both radial and axial, being damped hydraulically in the axial direction and capable of canceling said hydraulic damping at from a determined deformation in the radial direction, all with a realization of very simple construction and easy to assemble.

Ledit support objet de l'invention est défini par la revendication 1, et comporte un noyau élastique moulé en matériau élastomère, incluant deux inserts annulaires de renfort et une douille cylindrique centrale associés audit matériau, sur ledit noyau sont incorporées deux pièces semi-cylindriques complémentaires, entre ces pièces et le noyau sont définies deux chambres annulaires séparées par une membrane du noyau, tandis que sur l'ensemble de pièces semi-cylindriques est incorporée une structure cylindrique extérieure, entre cette structure et au moins une des pièces semi-cylindriques est défini un conduit labyrinthique qui communique avec les chambres annulaires précitées, la totalité du volume des chambres annulaires mentionnées et le conduit labyrinthique étant remplis de liquide amortisseur.Said support object of the invention is defined by claim 1, and comprises a molded elastic core of material elastomer, including two annular reinforcing inserts and a central cylindrical sleeve associated with said material, on said core are incorporated two semi-cylindrical pieces complementary, between these parts and the core are defined two annular chambers separated by a membrane of the core, while on the set of semi-cylindrical pieces is incorporated an outer cylindrical structure, between this structure and at least one of semi-cylindrical pieces is defined a labyrinthine conduit that communicates with the aforementioned annular chambers, the entire volume of annular chambers mentioned and the labyrinthine duct being filled with damping liquid.

On obtient ainsi un support élastique dans lequel la membrane du noyau reste radialement en contact avec l'intérieur des pièces semi-cylindriques, avec une certaine pression et en appui coulissant sur lesdites pièces, et dans lequel les deux chambres séparées par la membrane restent isolées l'une de l'autre, une communication entre elles étant seulement établie à travers le conduit labyrinthique extérieur.This gives an elastic support in which the core membrane remains radially in contact with the interior of the semi-cylindrical pieces, with some pressure and sliding support on said parts, and wherein the two separate chambers by the membrane remain isolated from each other, a communication between them being only established through the outer labyrinthine conduit.

Ainsi, lorsque la douille intérieure du noyau est déplacée en direction axiale par rapport à la structure extérieure de l'ensemble, un changement de volume des chambres séparées par la membrane du noyau est généré, ce qui pompe le liquide intérieur d'une chambre à l'autre à travers le canal labyrinthique extérieur et produit un amortissement de l'effort dû au déplacement relatif indiqué.Thus, when the inner sleeve of the core is moved axially by relative to the external structure of the whole, a change in the volume of the rooms separated by the core membrane is generated, which pumps the inner liquid of a room to another through the outer labyrinthine channel and produces a damping of the effort due to the relative displacement indicated.

La nature du matériau élastomère composant du noyau fait que l'ensemble offre en outre une élasticité en direction radiale, avec la particularité que, étant donné la disposition du montage, à partir d'une déformation déterminée en sens radial, les deux chambres contenant du liquide amortisseur restent directement en communication l'une avec l'autre, grâce à la séparation de la membrane par rapport aux pièces semi-cylindriques, par la partie d'où provient l'effort radial, annulant ainsi l'amortissement axial que provoquait le passage forcé du liquide entre les deux chambres à travers le conduit labyrinthique extérieur.The nature of the elastomeric component material of the core makes the assembly offer in addition to a radial elasticity, with the particularity that, given the layout of the mounting, from a determined deformation radially, the two chambers containing damping liquid remain directly in communication with each other, thanks to the separation of the membrane with respect to the semi-cylindrical pieces, by the part from which the radial force, canceling the axial damping caused by the forced liquid between the two chambers through the outer labyrinthine conduit.

Le montage des éléments composants du support s'effectue dans un liquide amortisseur, par exemple du glycol, avec lequel tous les creux intérieurs de l'ensemble monté sont complètement remplis et grâce au montage avec fermeture vers l'intérieur des extrémités de la structure extérieure, le liquide reste confiné à l'intérieur du support, sans s'échapper vers l'extérieur.The mounting of the component elements of the support takes place in a liquid damper, for example glycol, with which all the inner recesses of the mounted assembly are completely filled and thanks to the assembly with closing inwards ends external structure, the liquid remains confined inside the support, without escaping towards outside.

L'ensemble du support monté se comporte comme n'importe quelle pièce de caoutchouc-métal, c'est-à-dire élastiquement en cas de mouvement de la partie intérieure par rapport à la partie extérieure, en direction radiale, axiale, conique, de torsion ou une combinaison des précédentes. Grâce à l'élastomère existant, la douille centrale du noyau et les renforts annulaires de celle-ci restent fermement montés par rapport à la structure extérieure. Les propriétés élastiques de l'ensemble peuvent être modifiées en changeant la géométrie ou les caractéristiques de l'élastomère utilisé, ou bien en modifiant la disposition et la géométrie des éléments composants associés à l'élastomère.The assembled mount behaves like any other piece of rubber-metal, that is to say elastically in case of movement of the inner part by relative to the outer part, in radial, axial, conical, torsion or combination of the previous ones. Thanks to the existing elastomer, the central sleeve of the core and the annular reinforcements thereof remain firmly mounted relative to the outer structure. The elastic properties of the assembly can be modified by changing the geometry or the characteristics of the elastomer used, or by modifying the layout and geometry component elements associated with the elastomer.

Par conséquent, le support génère un amortissement important lorsqu'un déplacement en direction axiale de la partie intérieure par rapport à la partie extérieure se produit, de sorte que ledit mouvement se transmet à travers la membrane qui sépare les deux chambres contenant le liquide amortisseur, modifiant le volume desdites chambres, avec un pompage du liquide amortisseur d'une chambre à l'autre à travers le conduit labyrinthique extérieur, ce qui génère l'amortissement. As a result, the media generates significant damping when moving in the axial direction of the inner part relative to the outer part occurs, so that said movement is transmitted through the membrane that separates the two chambers containing the damping liquid, modifying the volume of said chambers, with a pumping of damping liquid from one chamber to another through the outer labyrinthine duct, which generates depreciation.

La membrane du noyau reste appuyée contre la partie interne des pièces semi-cylindriques avec une pression déterminée ; ceci permet d'une part de parvenir à maintenir les deux chambres isolées l'une de l'autre sans empêcher la déformation élastique de la membrane et son coulissement sur l'extérieur des pièces semi-cylindriques mentionnées, et d'autre part qu'en cas de sollicitation en direction radiale, la pression de l'appui de la membrane sur les pièces semi-cylindriques augmente d'un côté et diminue de l'autre, de manière à ce qu'à partir d'un déplacement déterminé dans un sens, la membrane ne soit plus en contact avec les pièces semi-cylindriques, provoquant ainsi une communication directe entre les deux chambres et annulant l'effet amortisseur axial du passage du liquide par le conduit labyrinthique extérieur. En fonction de la pression dans le montage entre la membrane du noyau et les pièces semi-cylindriques, l'effort radial permettant d'annuler l'amortissement axial peut être plus ou moins important.The core membrane remains supported against the inner part of the semi-cylindrical pieces with a determined pressure; this makes it possible, on the one hand, to maintain two chambers isolated from each other without preventing the elastic deformation of the membrane and its sliding on the outside of the semicylindrical parts mentioned, and on the other hand, in the case of radial stress, the pressure of the support of the membrane on the semi-cylindrical parts increases on one side and decreases on the other, so that from a determined displacement in one direction, the membrane is no longer in contact with the semi-cylindrical parts, thus causing direct communication between the two chambers and canceling the axial damping effect of the passage of the liquid by the leads labyrinthine exterior. Depending on the pressure in the fitting between the diaphragm of the core and the semi-cylindrical parts, the radial force to cancel the damping axial can be more or less important.

Les propriétés dynamiques du support peuvent s'ajuster en modifiant la conception des parties et éléments composants, étant donné que ces propriétés dynamiques dépendent des propriétés élastiques des parois des chambres contenant le liquide amortisseur, de l'efficacité du pompage de la membrane entre les chambres, de la pression de ladite membrane contre l'intérieur des pièces semi-cylindriques et des propriétés rhéologiques du liquide amortisseur. Les propriétés élastiques des parois des chambres s'ajustent en changeant leur géométrie, leur matériau et leurs renforts internes. L'efficacité du pompage se modifie en faisant varier le diamètre de la membrane du noyau. L'efficacité de l'amortissement peut se modifier en changeant la section et la longueur du conduit labyrinthique. La pression entre la membrane et les pièces semi-cylindriques peut être modifiée en faisant varier les diamètres relatifs entre ces éléments. Par ailleurs, grâce à l'ajustage des paramètres précédents, on parvient, pour une certaine amplitude, à faire que l'amortissement soit maximal à une fréquence déterminée.Dynamic properties of the media can adjust by changing the design parts and components, since these dynamic properties depend on the elastic properties of the walls of the chambers containing the damping liquid, the efficiency pumping the membrane between the chambers, the pressure of said membrane against the interior of the semi-cylindrical pieces and the rheological properties of the damping liquid. The elastic properties of the walls of the chambers adjust by changing their geometry, their material and their internal reinforcements. The efficiency of pumping is modified by varying the diameter of the core membrane. The effectiveness of depreciation can be modified in changing the section and the length of the labyrinthine conduit. The pressure between the membrane and the semi-cylindrical pieces can be modified by varying the relative diameters between these elements. Moreover, thanks to the adjustment of the preceding parameters, it is possible, for a certain amplitude, to make that the depreciation is maximum at a determined frequency.

Le support de l'invention offre un comportement élastique quasi linéaire en cas de sollicitation externe en direction radiale puisque l'élastomère composant du noyau permet une déformation élastique qui fait que la relation entre le déplacement et la force exercée est quasi linéaire dans les premiers millimètres de la déformation par rapport à d'autres réalisations de support connues dans lesquelles ladite relation cesse d'être linéaire avec un faible déplacement.The support of the invention offers an almost linear elastic behavior in case of external stress in the radial direction since the core component elastomer elastic deformation which makes the relation between the displacement and the force exerted almost linear in the first few millimeters of deformation compared to other achievements of known medium in which said relationship ceases to be linear with a weak displacement.

A l'extrémité de fixation pour son application, le support est muni d'une portion crantée de matériau élastomère, adhérant à certains des renforts annulaires du noyau et disposée face à un élément extérieur uni à la douille intérieure du noyau, ce qui permet d'établir une butée axiale élastique en cas de déformation axiale importante, par exemple en cas de freinage brutal du véhicule d'application, évitant ainsi de détériorer les chambres contenant le liquide amortisseur.At the fixing end for its application, the support is provided with a portion notched elastomeric material, adhering to some of the annular reinforcements of the core and disposed facing an outer element joined to the inner sleeve of the core, which allows to establish an elastic axial abutment in case of significant axial deformation, for example in case of brutal braking of the application vehicle, thus avoiding deteriorating the chambers containing the damping liquid.

Ledit support de l'invention résulte en une grande simplicité de construction : le noyau est une pièce à symétrie axiale qui s'obtient au moyen d'un procédé simple de moulage du matériau élastomère sur les anneaux de renfort et la douille cylindrique intérieure, la douille cylindrique tout comme les renforts annulaires étant des éléments faciles à se procurer, ainsi que la structure extérieure du support constituée d'un simple tube cylindrique de faible épaisseur, tandis que les pièces semi-cylindriques disposées sur le noyau présentent une géométrie simple qui peut être obtenue par moulage dans n'importe quel plastique ou matériau similaire.Said support of the invention results in a great simplicity of construction: the core is an axially symmetric part obtained by means of a simple process of molding the elastomer material on the reinforcement rings and the inner cylindrical sleeve, the socket cylindrical as the ring reinforcements being easy to obtain items, as well as that the outer structure of the support consists of a simple cylindrical tube of weak thickness, while the semi-cylindrical pieces arranged on the core have a simple geometry that can be obtained by molding in any plastic or similar material.

Le montage de construction du support est lui-même très simple, puisque l'ensemble comprend seulement quatre pièces, à savoir le noyau, les deux pièces semi-cylindriques et la structure extérieure, lesquelles s'incorporent dans la disposition du montage dans le liquide amortisseur qui doit remplir les chambres et le conduit labyrinthique du support, de sorte qu'en fermant les extrémités de la structure sur les parties extrêmes du noyau, tout l'intérieur soit complètement rempli de liquide : l'incorporation de la structure et la fermeture des extrémités peut donc s'effectuer en une seule opération.The mounting construction of the support is itself very simple, since the whole comprises only four pieces, namely the core, the two semi-cylindrical pieces and the external structure, which are incorporated in arrangement of arrangement in liquid damper that must fill the chambers and the labyrinthine duct of the bracket, so that by closing the ends of the structure on the extreme parts of the core, all the interior completely filled with liquid: the incorporation of the structure and the closure of ends can be done in one operation.

La fixation pratique du support sur le lieu d'application peut se réaliser au moyen d'une simple vis passée à travers la douille cylindrique intérieure du noyau, tandis qu'à l'extérieur le support possède également une forme cylindrique qui permet son montage facile sous pression sur n'importe quel type de logement circulaire, sans besoin d'utiliser de vis ou tout autre élément de fixation en raison de dimensions assez réduites permettant de l'incorporer dans des petits espaces. Par ailleurs, comme le support présente une symétrie axiale, il peut être monté avec une fixation externe sur une quelconque partie de sa longueur.The practical fixing of the support on the place of application can be realized by means of of a single screw passed through the inner cylindrical sleeve of the core, while the outside the support also has a cylindrical shape which allows its easy assembly under pressure on any type of circular housing, without the need for screws or any other fastening element because of rather small dimensions allowing incorporate it into small spaces. Moreover, since the support has a symmetry axial, it can be mounted with an external fixation on any part of its length.

Par conséquent, ledit support objet de l'invention comporte assurément plusieurs caractéristiques très avantageuses, qui lui confèrent une existence propre et un caractère préféré par rapport aux supports élastiques actuellement connus du même type.

  • La figure 1 montre une vue explosée en perspective de l'ensemble composant du support préconisé.
  • La figure 2 est une vue en coupe longitudinale de l'ensemble du support monté, en position de repos.
  • La figure 3 est une vue de la section longitudinale du support dans une position basse, effet d'un effort axial.
  • La figure 4 est une vue de la section longitudinale du support en position basse, effet d'un effort radial.
  • La figure 5 est un graphique qui correspond à un essai du comportement statique de la rigidité radiale du support.
  • La figure 6 est un graphique qui correspond à un essai du comportement statique de la rigidité axiale du support.
  • La figure 7 est un graphique qui correspond à un essai du comportement de la rigidité dynamique axiale du support.
  • La figure 8 est un graphique qui correspond à un essai du comportement dynamique de l'angle de perte du support.
    • Therefore, said support object of the invention certainly includes several very advantageous characteristics, which give it a proper existence and a preferred character compared to currently known elastic carriers of the same type.
  • Figure 1 shows an exploded view in perspective of the component assembly of the recommended support.
  • Figure 2 is a longitudinal sectional view of the assembly of the mounted support, in the rest position.
  • Figure 3 is a view of the longitudinal section of the support in a low position, effect of an axial force.
  • Figure 4 is a view of the longitudinal section of the support in the low position, effect of a radial force.
  • Figure 5 is a graph which corresponds to a test of the static behavior of the radial rigidity of the support.
  • Figure 6 is a graph which corresponds to a test of the static behavior of the axial stiffness of the support.
  • Figure 7 is a graph that corresponds to a test of the behavior of the axial dynamic stiffness of the support.
  • Fig. 8 is a graph which corresponds to a test of the dynamic behavior of the angle of loss of the support.

    • L'objet de l'invention est un support élastique à amortissement hydraulique, qui comporte, comme représenté sur la figure 1, un noyau (1), deux pièces semi-cylindriques complémentaires (2 et 3), et une structure cylindrique (4), à l'intérieur de laquelle est monté le noyau (1) sur lequel sont disposées les deux pièces semi-cylindriques.The object of the invention is an elastic support with hydraulic damping, which comprises, as shown in FIG. 1, a core (1), two semi-cylindrical pieces (2 and 3), and a cylindrical structure (4), inside which is mounted the core (1) on which are disposed the two semi-cylindrical parts.

    Le noyau (1) se compose d'un matériau élastomère (5), lequel est moulé sur une douille cylindrique intérieure (6), incluant également deux renforts annulaires (7 et 8) encastrés dans le propre matériau élastomère (5) dans les zones situées aux extrémités.The core (1) consists of an elastomeric material (5), which is molded on a inner cylindrical sleeve (6), also including two annular reinforcements (7 and 8) embedded in the own elastomeric material (5) in the areas at the ends.

    Cet ensemble du noyau (1) détermine deux fentes annulaires (9 et 10), lesquelles sont définies dans la zone située entre les positions des deux renforts annulaires (7 et 8)et étant séparées par une membrane centrale (11) intermédiaire.This set of core (1) determines two annular slots (9 and 10), which are defined in the area between the positions of the two ring reinforcements (7 and 8) and being separated by an intermediate central membrane (11).

    Les pièces semi-cylindriques (2 et 3) sont disposées en formant un anneau à l'extérieur du noyau (1), entre les renforts annulaires (7 et 8), de manière à ce qu'elles restent appuyées contre la membrane (11), fermant de manière périphérique les fentes (9 et 10), lesquelles forment ainsi des chambres annulaires isolées l'une de l'autre par la membrane (11).The semi-cylindrical pieces (2 and 3) are arranged forming a ring on the outside the core (1), between the annular reinforcements (7 and 8), so that they remain supported against the membrane (11), closing peripherally the slots (9 and 10), which thus form annular chambers isolated from each other by the membrane (11).

    Les pièces semi-cylindriques (2 et 3), ou tout au moins l'une d'elles, déterminent sur la partie extérieure, un canal labyrinthique (12), lequel communique par ses extrémités avec les chambres respectives (9 et 10) à travers plusieurs passages (13 et 14), de manière à ce qu'au moyen de la structure extérieure (4), ledit canal (12) reste couvert sur sa partie extérieure, formant un conduit qui communique par l'extérieur des pièces (2 et 3) avec les chambres (9 et 10).The semi-cylindrical pieces (2 and 3), or at least one of them, determine on the outer part, a labyrinthine channel (12), which communicates by its ends with the respective chambers (9 and 10) through several passages (13 and 14), so that by means of the outer structure (4), said channel (12) remains covered on its part the outside, forming a conduit which communicates from the outside of the parts (2 and 3) with the rooms (9 and 10).

    Le montage de l'ensemble se réalise dans un liquide amortisseur, de façon à ce que l'intérieur des chambres (9 et 10) et du conduit labyrinthique (12) soit complètement rempli dudit liquide ; le montage se terminant avec la fermeture des extrémités de la structure extérieure (4) vers l'intérieur, de façon à ce que lesdites extrémités restent appuyées contre le noyau (1), la structure (4) assurant ainsi l'emballage de l'ensemble, tout en réalisant l'étanchéité qui empêche le liquide enfermé à l'intérieur de s'échapper.The assembly of the assembly is carried out in a damping liquid, so that the interior of the chambers (9 and 10) and the labyrinthine duct (12) is completely filled said liquid; the assembly ending with the closing of the ends of the structure (4) inwardly, so that said ends remain supported against the core (1), the structure (4) thus ensuring the packaging of the whole, while realizing the seal that prevents the enclosed liquid from escaping.

    L'ensemble monté est comme représenté à la figure 2, c'est-à-dire qu'il comprend le noyau (1) à l'intérieur, et entre celui-ci et la structure extérieure (4) sont incluses les pièces (2 et 3) déterminant les chambres (9 et 10) séparées par la membrane (11) et communiquant entre elles par l'extérieur des pièces (2 et 3) à travers le conduit labyrinthique (12), l'intérieur des chambres (9 et 10) mentionnées et le conduit (12) étant totalement rempli de liquide amortisseur.The assembled assembly is as shown in FIG. 2, that is to say that it comprises the core (1) inside, and between it and the outer structure (4) are included the pieces (2 and 3) determining the chambers (9 and 10) separated by the membrane (11) and communicating between them from the outside of the pieces (2 and 3) through the labyrinthine conduit (12), the interior chambers (9 and 10) and the conduit (12) being completely filled with liquid damper.

    Dans cette disposition le matériau élastomère (5) du noyau permet une déformation élastique entre la douille intérieure (6) et les renforts annulaires (7 et 8) sur lesquels la structure extérieure (4) est appuyée au moyen d'une petite couche de matériau élastomère (5), de sorte que l'ensemble a un comportement élastique quasi linéaire en cas de sollicitation radiale, axiale, conique, de torsion, ou de la combinaison des précédentes.In this arrangement the elastomeric material (5) of the core allows deformation between the inner sleeve (6) and the annular reinforcements (7 and 8) on which the outer structure (4) is supported by means of a small layer of elastomeric material (5), so that the whole has an almost linear elastic behavior in case of solicitation radial, axial, conical, torsion, or the combination of the previous ones.

    La membrane (11) reste quant à elle en contact contre la partie intérieure des pièces (2 et 3) avec une certaine pression, établissant ainsi une séparation étanche entre les chambres (9 et 10), mais avec une liberté de déformation élastique et un glissement sur ledit appui.The membrane (11) remains in contact with the inner part of the parts (2 and 3) with a certain pressure, thus establishing a tight separation between the chambers (9 and 10), but with a freedom of elastic deformation and a sliding on said support.

    La fixation du support pour son application pratique se réalise à travers la douille intérieure (6) et par la structure extérieure (4), via l'introduction d'une vis de fixation par la fente axiale de la douille (6) et en encastrant l'ensemble à l'intérieur d'un logement cylindrique dans lequel la structure (4) reste ajustée sous pression.The fixing of the support for its practical application is carried out through the socket (6) and the external structure (4), via the introduction of a fixing screw by the axial slot of the socket (6) and embedding the assembly inside a housing cylindrical in which the structure (4) remains adjusted under pressure.

    Dans cette disposition, le support est en mesure d'amortir efficacement la composante axiale en cas de mouvement ou vibration de la douille intérieure (6) par rapport à la structure extérieure (4), puisque le mouvement de la douille (6) se transmet à la charnière (11), provoquant une modification du volume des chambres (9 et 10) selon l'effort appliqué, augmentant le volume de l'une des chambres tout en diminuant celui de l'autre, comme cela est représenté à la figure 3.In this arrangement, the support is able to effectively dampen the component axial in case of movement or vibration of the inner sleeve (6) with respect to the structure outside (4), since the movement of the sleeve (6) is transmitted to the hinge (11), causing a change in the volume of the chambers (9 and 10) according to the force applied, increasing the volume of one of the rooms while decreasing the one of the other, like this is shown in Figure 3.

    La diminution du volume dans la chambre (10) qui se réduit provoque une augmentation de la pression dans ladite chambre (10), tandis que l'augmentation du volume dans la chambre (9) qui subit une expansion provoque une diminution de la pression dans cette chambre (9), les deux effets s'ajoutant pour créer une action de pompage du liquide contenu dans lesdites chambres (9 et 10), de la chambre (10) vers la chambre (9), à travers le conduit extérieur (12), de sorte que la section réduite et la géométrie labyrinthique dudit conduit (12) offrent une résistance au passage du liquide, ce qui se traduit par un amortissement de l'effort axial appliqué entre la douille (6) et la structure (4). The decrease in the volume in the chamber (10) which is reduced causes a increasing the pressure in said chamber (10) while increasing the volume in the chamber (9) which expands causes a decrease of the pressure in the this chamber (9), the two effects being added to create a pumping action of the liquid contained in said chambers (9 and 10), from the chamber (10) to the chamber (9), through the outer duct (12), so that the reduced section and the labyrinthine geometry of said conduit (12) provide resistance to the passage of the liquid, which results in a damping of the axial force applied between the sleeve (6) and the structure (4).

    La membrane (11) est conçue de manière à rester, dans la disposition du montage, comprimée à une certaine pression entre les pièces (2 et 3), de sorte que les chambres (9 et 10) restent isolées l'une par rapport à l'autre, mais sans empêcher la déformation élastique du revêtement élastomère de ladite membrane (11) et son coulissement sur l'intérieur des pièces (2 et 3).The diaphragm (11) is designed to remain in the mounting arrangement, compressed at a certain pressure between the pieces (2 and 3), so that the chambers (9 and 10) remain isolated from each other, but without preventing the elastic deformation of the elastomeric coating of said membrane (11) and sliding on the inside of the parts (2 and 3).

    Par conséquent, le support élastique peut être soumis à des sollicitations du type radial, axial, conique ou de torsion jusqu'à un certain degré sans qu'une communication directe entre les deux chambres (9 et 10) ne se produise, tant qu'en cas de déplacement d'une douille intérieure (6) par rapport à la structure extérieure (4), en direction radiale, l'ajustement entre la membrane (11) et les pièces (2 et 3) augmente d'un côté et diminue de l'autre, de sorte que même si cet ajustement sur le contour est plus important que le déplacement radial de la douille (6), la membrane (11) puisse maintenir les deux chambres (9 et 10) isolées. Mais lorsque la douille (6) arrive à un certain déplacement radial (15), comme l'illustre la figure 4, le contour de la membrane (11) perd dans une zone le contact avec l'intérieur des pièces (2 et 3), produisant une communication directe entre les chambres (9 et 10), avec la disparition de l'effet amortisseur que produit le passage du liquide par le conduit (12) en conditions normales.Consequently, the elastic support may be subjected to radial-type stresses, axial, conical or torsional to a certain degree without direct communication between the two chambers (9 and 10) do not occur, as long as in case of displacement of a socket interior (6) relative to the outer structure (4), radially, the adjustment between the membrane (11) and the pieces (2 and 3) increase on one side and decrease on the other, so that even though this adjustment on the contour is more important than the radial displacement of the socket (6), the diaphragm (11) can hold the two chambers (9 and 10) isolated. But when the bushing (6) reaches a certain radial displacement (15), as illustrated in FIG. 4, the contour of the membrane (11) loses in one zone the contact with the inside of the parts (2 and 3), producing a direct communication between the rooms (9 and 10), with the disappearance of the damping effect produced by the passage of the liquid through the conduit (12) under conditions normal.

    En arrêtant le déplacement radial de la douille (6) par rapport à la structure (4), la membrane (11) se remet en contact avec l'intérieur des pièces (2 et 3) sur l'ensemble du contour, interrompant la communication directe entre les chambres (9 et 10) et les laissant de nouveau communiquer uniquement par le conduit extérieur (12), avec lequel l'effet amortisseur est récupéré.By stopping the radial displacement of the sleeve (6) relative to the structure (4), the membrane (11) comes into contact with the interior of the parts (2 and 3) over the entire contour, interrupting the direct communication between the rooms (9 and 10) and leaving them new communicate only through the outer conduit (12), with which the effect damper is recovered.

    A une extrémité le noyau (1) incorpore une portion crantée (16) de matériau élastomère, qui peut être continue sur un contour circulaire avec des parties proéminentes séparées par des zones de hauteur moindre, ladite portion crantée (16) étant disposée sur une aile (17) du renfort annuaire (7) correspondant de ladite extrémité, tandis qu'un élément (18) en forme de disque, solidaire par rapport à la douille intérieure (6) s'incorpore à ladite extrémité, cet élément se trouvant à une certaine distance de la portion crantée (16).At one end the core (1) incorporates a notched portion (16) of material elastomer, which can be continuous on a circular contour with prominent parts separated by zones of lesser height, said notched portion (16) being disposed on an wing (17) of the corresponding directory reinforcement (7) of said end, while an element (18) disc-shaped, integral with the inner sleeve (6) is incorporated in said end, this element being at a distance from the notched portion (16).

    Par conséquent, jusqu'à un certain degré de déplacement axial de la douille (6) par rapport à la structure (4), le support se comporte de la façon décrite précédemment, amortissant l'effort qui donne lieu à la déformation, mais lorsque la douille (6) arrive à un certain degré de déplacement axial par rapport à la structure (4), l'élément (18) fait tampon sur la portion crantée (16), ce qui augmente notablement la rigidité axiale, opposant une résistance beaucoup plus forte à la poursuite du déplacement axial de la douille (6), évitant grâce à cela de détériorer le matériau élastomère (5) qui configure les chambres (9 et 10).Therefore, up to a certain degree of axial displacement of the sleeve (6) by relative to the structure (4), the support behaves as described above, damping the force which gives rise to the deformation, but when the sleeve (6) arrives at a certain degree of axial displacement with respect to the structure (4), the element (18) buffers on the notched portion (16), which significantly increases the axial rigidity, opposing a much stronger resistance to further axial displacement of the sleeve (6), avoiding thereby deteriorating the elastomeric material (5) which configures the chambers (9 and 10).

    La fonctionnalité décrite est atteinte avec un support de réalisation très simple, dont l'ensemble de montage comprend uniquement le noyau moulé (1), les deux pièces semi-cylindriques (2 et 3) et la structure extérieure (4), formant un élément de dimension réduite, qui s'avère extrêmement avantageux pour l'installation pratique de son application, et avec lequel on obtient un comportement statique et dynamique avec des caractéristiques telles que celles indiquées aux figures 5, 6, 7 et 8, lesquelles ne sont pas obtenues dans de telles proportions avec les réalisations de support élastiques connues de la même application.The described functionality is achieved with a very simple realization support, including the assembly assembly comprises only the molded core (1), the two semi-cylindrical parts (2 and 3) and the outer structure (4), forming a reduced-size element, which is extremely advantageous for the practical installation of its application, and with which one obtains a static and dynamic behavior with characteristics such as those shown in Figures 5, 6, 7 and 8, which are not obtained in such proportions with the known elastic support embodiments of the same application.

    Claims (4)

    1. Resilient support with hydraulic damping of the type comprising an inner means and an outer means that can be movable by a certain degree of relative elastic displacement with respect to each other, including two chambers filled with a liquid that can pass in a forced manner between these chambers, this support comprising a core (1) formed by an elastomeric material (5) moulded over an inner cylindrical bushing (6) and over several annular reinforcements (7 and 8) situated peripherally at the ends, the elastomeric material (5) determining, in the middle area of said core (1) situated between the reinforcements (7 and 8), two annular slots that form two chambers (9 and 10), separated by an intermediate membrane (11) covered by the elastomeric material (5), characterised in that two semicylindrical parts (2 and 3) are arranged on said slots and close the outer contour of the latter, said membrane (11) being able to remain pressed peripherally against the inner portion of said parts (2 and 3) in order to establish a separation between the two chambers (9 and 10), at least one of these parts defining, by means of its outer portion, a labyrinthine canal (12), the ends of which communicate by means of respective passages (13 and 14) with said chambers, whilst outside there is arranged a cylindrical structure (4) that peripherally closes the assembly providing the mounting, this cylindrical structure (4) determining, together with the channel (12), a communication conduit between the chambers (9 and 10) via the outside of the parts (2 and 3); and in that said membrane (11) allows an elastic displacement of the inner bushing (6) with respect to the outer structure (4), in the radial direction, and maintains the separation between the chambers (9 and 10) up to a certain degree of radial displacement (15) of the bushing (6), on the basis of which an area of the contour of the membrane (11) separates from the inside of the parts (2 and 3) and allows a direct communication to be established between the chambers (9 and 10).
    2. Resilient support with hydraulic damping according to Claim 1, characterised in that the incorporation of the parts (2 and 3) on the core (1) and the introduction of said assembly in the structure (4) is effected in a damping liquid, by means of which the volume of the chambers (9 and 10) and the conduit (12) in the mounted assembly are completely filled.
    3. Resilient support with hydraulic damping according to Claim 1 or 2, characterised in that said membrane (11) is able to remain pressed peripherally with a certain pressure against the inner portion of the parts (2 and 3) in order to establish separation between the two chambers (9 and 10), and with a possibility of elastic deformation and sliding in the abutment on the inside of said parts (2 and 3).
    4. Resilient support with hydraulic damping according to any one of Claims 1 to 3, characterised in that, at one end, the core (1) comprises a notched portion (16) made from elastomeric material incorporated on the respective annular reinforcement (7) of this end, whilst a disc-shaped element (18) is incorporated integrally on the end of the inner bushing (6), which remains a certain distance away from the notched portion (16) in order to bear on the latter when the relative axial displacement of the bushing (6) with respect to the outer structure (4) exceeds this distance that separates said element (18) from the notched portion (16).
    EP03291891A 2002-07-31 2003-07-30 Hydraulically damped elastic mount Expired - Lifetime EP1387111B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    ES200201805A ES2224802B1 (en) 2002-07-31 2002-07-31 HYDRAULICALLY CUSHED ELASTIC SUPPORT.
    ES200201805 2002-07-31

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    EP1387111A1 EP1387111A1 (en) 2004-02-04
    EP1387111B1 true EP1387111B1 (en) 2005-12-21

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    DE102005018211B4 (en) * 2005-04-20 2012-12-06 Bayerische Motoren Werke Aktiengesellschaft Hydraulically damping bearing bush
    CN102465989B (en) * 2010-11-05 2014-03-26 上海骆氏减震件有限公司 Cylindrical vibration isolation device
    DE102011008625A1 (en) 2011-01-14 2012-07-19 Audi Ag Spring and damper system, in particular for an assembly storage in a motor vehicle
    JP6126889B2 (en) * 2013-03-29 2017-05-10 山下ゴム株式会社 Liquid seal type vibration isolator
    JP6619588B2 (en) * 2015-09-02 2019-12-11 株式会社ブリヂストン Vibration isolator
    JP2019049337A (en) * 2017-09-12 2019-03-28 住友理工株式会社 Fluid sealed type cylindrical vibration control device
    JP2019082197A (en) * 2017-10-30 2019-05-30 住友理工株式会社 Fluid sealed type cylindrical vibration isolator
    JP7066647B2 (en) * 2019-02-15 2022-05-13 本田技研工業株式会社 Variable stiffness bush

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    JPH03199735A (en) * 1989-12-26 1991-08-30 Bridgestone Corp Vibro-isolating device
    DE4015523C1 (en) * 1990-05-15 1991-11-14 Boge Ag, 5208 Eitorf, De
    JP3426292B2 (en) * 1993-08-06 2003-07-14 株式会社ブリヂストン Anti-vibration device
    DE19526750C2 (en) * 1995-07-21 1998-07-02 Metzeler Gimetall Ag Axial damping hydraulic bushing
    JPH11230239A (en) * 1998-02-09 1999-08-27 Kinugawa Rubber Ind Co Ltd Liquid-sealed vibration control mount and manufacture of the same
    JP2001241490A (en) * 1999-12-22 2001-09-07 Toyo Tire & Rubber Co Ltd Liquid-sealed body mount

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    EP1387111A1 (en) 2004-02-04
    ES2224802B1 (en) 2005-12-01
    ES2224802A1 (en) 2005-03-01
    DE60302837T2 (en) 2006-09-07
    DE60302837D1 (en) 2006-01-26
    ATE313740T1 (en) 2006-01-15
    PT1387111E (en) 2006-07-31

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